Thank you so much for getting back on my suggestions!

I didn’t know that the search field works like that - so that’s kindly noted and appreciated!

By clicking on the image icon in the editor (navigation on the left hand side), this here appears in the content field of the editor: ! [ ]( u r l )
I left spaces in between all the characters in order to display it well here.

Now how can I upload the image into the editor then?

What I did for my post was uploading the images into the Steemit editor and then copy-pasting the url into the markdown code fragment above. From your comment I deduce that there’s an easier way to do that...?

Again thanks for your support, both by upvoting and commenting :-)